WEST BATH, Maine (AP) A 2-year-old boy in Maine shot and wounded his parents Wednesday after discovering a handgun on a nightstand, police said.

The 22-year-old mother was hit in the leg, the 25-year-old father suffered a minor head injury and the boy was injured by the recoil of the weapon when a single shot was fired, Sagadahoc County Sheriff Joel Merry said. All three went to the hospital.

“This situation, while disturbing, could have had an even more tragic ending. We are thankful that the injuries were not more serious,” Merry said.

The parents were in bed when the 9mm semiautomatic handgun discharged, and the father dialed 911 shortly before 8 a.m., the sheriff said.

The incident remains under investigation by the sheriff’s department and the district attorney, Merry said. The sheriff declined to release the names of anyone involved in the incident.

A 3-week-old who was in the room was turned over to his grandmother who lives there, but wasn’t home at the time of the shooting, officials said.